Table 6.

Comparison of distribution of Molecular subtypes of Breast Cancer from Selected East African Studies

Author, year	Country	Number of breast cancer patients	Average age at diagnosis (yrs)	% ER−	% PR−	% HER2−	% ER− /PR− /HER2− (triple negative)
This Study, Endale et al.	Ethiopia	114	43	35	56	76	23
Jiagge et al., 2016 [22]	Ethiopia	94	43	–	–	–	15
Sayed S et al.,2014 [21]	Kenya	301	47.5	27.2	35.2	82.4a	20.2
Kantelhardt et al., 2014 [20]	Ethiopia	352	–	35	49	–	–
Jemal and Fedewa, 2012 [29]	USAb	186	48	22	35	–	–

^aHER2 equivocal cases are considered as negative

^bDone on Eastern Africa-born blacks living in USA (74% were Ethiopians)